Perioperative medicine & outcomes
Impact of daily, weekly, and seasonal surgical timing on postoperative outcomes in high-risk patients undergoing elective non-cardiac surgery: A retrospective, single-center study
Authors' conclusion
Surgical start timing was significantly associated with postoperative outcomes in high-risk patients, underscoring the need for strategic scheduling.
Study context
- Population
- High-risk patients (ASA ≥ 3) undergoing elective non-cardiac surgery at a tertiary medical center, 2012 to 2021
- Participants
- 14,394 patients
- Exposure
- Afternoon vs morning surgical start time
- Outcome
- Mortality
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
Afternoon vs MorningAdjusted hazard ratio (95 % CI)P value
90 days
1.28(1.05–1.57)
P = 0.016180 days
1.30(1.12–1.51)
P < 0.0011 year
1.26(1.13–1.40)
P < 0.001Overall mortality
1.16(1.09–1.23)
P < 0.001Observational data: associations, not effects.
Further findings
| Outcome | aOR (95 % CI) | P value | |
|---|---|---|---|
| Composite complications | 1.21 (1.11–1.33) | P < 0.001 | |
| ICU admission | 1.40 (1.28–1.52) | P < 0.001 | |
| RBC transfusion | 1.40 (1.22–1.61) | P < 0.001 | |
| 0.512Adjusted odds ratio (log scale) |
Start 3:00-6:00 p.m. (highest risk interval)
| Estimate | P value | ||
|---|---|---|---|
| 3:00-6:00 p.m.1-year mortality | aHR 1.33 (95 % CI 1.15–1.54) | P < 0.001 | |
| 3:00-6:00 p.m.Composite complications | aOR 1.32 (95 % CI 1.17–1.50) | P < 0.001 | |
| 0.512Ratio (log scale) |
Seasonal mortality
| aHR (95 % CI) | P value | ||
|---|---|---|---|
| Summer30-day mortality | 1.80 (1.08–2.99) | P = 0.023 | |
| Summer90-day mortality | 1.32 (1.00–1.74) | P = 0.048 | |
| WinterOverall mortality | 1.10 (1.01–1.19) | P = 0.030 | |
| 0.20.5125Adjusted hazard ratio (log scale) |
Subgroups by surgical type (subgroup)
- Variability by surgical type
Original publication
Impact of daily, weekly, and seasonal surgical timing on postoperative outcomes in high-risk patients undergoing elective non-cardiac surgery: A retrospective, single-center study. J Clin Anesth. Published 26 May 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →